The Difference Between Agent and Harness
BraceSproul · x · 2026-07-14
This reply explains the difference between harness and agent:
- The example analogizes Iron Man to an agent, the human to a model, and the armor to a harness.
- The author points out that over time, models will absorb more and more harness functionalities.
- They also use "gpt -> codex" as an analogy to illustrate the shifting boundary between models and external execution layers.
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